Clement C. Ukanwa

Assessment of Microbial and Physicochemical Responses to Spent Engine Oil Contamination across Different Time Intervals in Mechanic Workshops

Chigozie Nwagwu, Emmanuel O. Fenibo, Juliana O. Pondei, Clement C. Ukanwa & Herbert O. Stanley · Asian Journal of Environment & Ecology · 2026

Spent engine oil (SEO) contamination is a persistent and underregulated source of soil degradation in urban and peri-urban environments, particularly within mechanic workshop settings. This study provides a chronosequence-based assessment of the long-term impacts of SEO on soil p...